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E12 Resistor Twelve-Slot Index Box
A 105 x 55 mm box with 12 slots, one for each E12 value (10, 12, 15, 18, 22, 27, 33, 39, 47, 56, 68, 82). Each slot is 7 mm wide and 51 mm deep and holds small poly bags or taped strips of that value, one bag per decade. The front of each slot has 1 to 12 moulded dots, so you can find a value by counting, with no printed labels to smudge or peel. The top slopes from 45 mm at the back to 28 mm at the front, which leaves the bag tops easy to read and grab.
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